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-rw-r--r--cpukit/libcsupport/src/newlibc.c292
1 files changed, 0 insertions, 292 deletions
diff --git a/cpukit/libcsupport/src/newlibc.c b/cpukit/libcsupport/src/newlibc.c
deleted file mode 100644
index 3c5e58b67c..0000000000
--- a/cpukit/libcsupport/src/newlibc.c
+++ /dev/null
@@ -1,292 +0,0 @@
-/*
- * @(#)newlibc.c 1.8 - 95/04/25
- *
- */
-
-#if defined(RTEMS_NEWLIB)
-
-/*
- * File: $RCSfile$
- * Project: PixelFlow
- * Created: 94/12/7
- * Revision: $Revision$
- * Last Mod: $Date$
- *
- * COPYRIGHT (c) 1994 by Division Incorporated
- *
- * To anyone who acknowledges that this file is provided "AS IS"
- * without any express or implied warranty:
- * permission to use, copy, modify, and distribute this file
- * for any purpose is hereby granted without fee, provided that
- * the above copyright notice and this notice appears in all
- * copies, and that the name of Division Incorporated not be
- * used in advertising or publicity pertaining to distribution
- * of the software without specific, written prior permission.
- * Division Incorporated makes no representations about the
- * suitability of this software for any purpose.
- *
- * Description:
- * Implementation of hooks for the CYGNUS newlib libc
- * These hooks set things up so that:
- * '_REENT' is switched at task switch time.
- *
- *
- * TODO:
- *
- * NOTE:
- *
- * $Id$
- *
- */
-
-#include <rtems.h>
-#include <libcsupport.h>
-#include <stdlib.h> /* for free() */
-#include <string.h> /* for memset() */
-
-#include <sys/reent.h> /* for extern of _REENT (aka _impure_ptr) */
-
-#include "internal.h"
-
-#define LIBC_NOTEPAD RTEMS_NOTEPAD_LAST
-
-
-int libc_reentrant; /* do we think we are reentrant? */
-struct _reent libc_global_reent = _REENT_INIT(libc_global_reent);;
-
-/*
- * CYGNUS newlib routine that does atexit() processing and flushes
- * stdio streams
- * undocumented
- */
-
-extern void _wrapup_reent(struct _reent *);
-extern void _reclaim_reent(struct _reent *);
-
-void
-libc_wrapup(void)
-{
- _wrapup_reent(0);
- if (_REENT != &libc_global_reent)
- {
- _wrapup_reent(&libc_global_reent);
-#if 0
- /* don't reclaim this one, just in case we do printfs */
- /* on our way out to ROM */
- _reclaim_reent(&libc_global_reent);
-#endif
- _REENT = &libc_global_reent;
- }
-}
-
-
-rtems_extension
-libc_create_hook(rtems_tcb *current_task,
- rtems_tcb *creating_task)
-{
- MY_task_set_note(creating_task, LIBC_NOTEPAD, 0);
-}
-
-/*
- * Called for all user TASKS (system tasks are SYSI and IDLE)
- */
-
-rtems_extension
-libc_start_hook(rtems_tcb *current_task,
- rtems_tcb *starting_task)
-{
- struct _reent *ptr;
-
- /* NOTE: our malloc is reentrant without a reent ptr since
- * it is based on region manager
- */
-
- ptr = (struct _reent *) malloc(sizeof(struct _reent));
-
- /* GCC extension: structure constants */
- *ptr = (struct _reent) _REENT_INIT((*ptr));
-
- MY_task_set_note(starting_task, LIBC_NOTEPAD, (rtems_unsigned32) ptr);
-}
-
-rtems_extension
-libc_switch_hook(rtems_tcb *current_task,
- rtems_tcb *heir_task)
-{
- rtems_unsigned32 impure_value;
-
- /* XXX We can't use rtems_task_set_note() here since SYSI task has a
- * tid of 0, which is treated specially (optimized, actually)
- * by rtems_task_set_note
- */
-
- impure_value = (rtems_unsigned32) _REENT;
- MY_task_set_note(current_task, LIBC_NOTEPAD, impure_value);
-
- _REENT = (struct _reent *) MY_task_get_note(heir_task, LIBC_NOTEPAD);
-
-}
-
-/*
- * Function: libc_delete_hook
- * Created: 94/12/10
- *
- * Description:
- * Called when a task is deleted.
- * Must restore the new lib reentrancy state for the new current
- * task.
- *
- * Parameters:
- *
- *
- * Returns:
- *
- *
- * Side Effects:
- *
- * Notes:
- *
- *
- * Deficiencies/ToDo:
- *
- *
- */
-rtems_extension
-libc_delete_hook(rtems_tcb *current_task,
- rtems_tcb *deleted_task)
-{
- struct _reent *ptr;
-
- /*
- * The reentrancy structure was allocated by newlib using malloc()
- */
-
- if (current_task == deleted_task)
- {
- ptr = _REENT;
- }
- else
- {
- ptr = (struct _reent *) MY_task_get_note(deleted_task, LIBC_NOTEPAD);
- }
-
- if (ptr)
- {
- _wrapup_reent(ptr);
- _reclaim_reent(ptr);
- }
-
- MY_task_set_note(deleted_task, LIBC_NOTEPAD, 0);
-
- /*
- * Require the switch back to another task to install its own
- */
-
- if (current_task == deleted_task)
- {
- _REENT = 0;
- }
-}
-
-/*
- * Function: libc_init
- * Created: 94/12/10
- *
- * Description:
- * Init libc for CYGNUS newlib
- * Set up _REENT to use our global libc_global_reent.
- * (newlib provides a global of its own, but we prefer our
- * own name for it)
- *
- * If reentrancy is desired (which it should be), then
- * we install the task extension hooks to maintain the
- * newlib reentrancy global variable _REENT on task
- * create, delete, switch, exit, etc.
- *
- * Parameters:
- * reentrant non-zero if reentrant library desired.
- *
- * Returns:
- *
- * Side Effects:
- * installs libc extensions if reentrant.
- *
- * Notes:
- *
- *
- * Deficiencies/ToDo:
- *
- */
-
-void
-libc_init(int reentrant)
-{
- rtems_extensions_table libc_extension;
- rtems_id extension_id;
- rtems_status_code rc;
-
- _REENT = &libc_global_reent;
-
- if (reentrant)
- {
- memset(&libc_extension, 0, sizeof(libc_extension));
-
- libc_extension.rtems_task_create = libc_create_hook;
- libc_extension.rtems_task_start = libc_start_hook;
- libc_extension.task_switch = libc_switch_hook;
- libc_extension.rtems_task_delete = libc_delete_hook;
-
- rc = rtems_extension_create(rtems_build_name('L', 'I', 'B', 'C'),
- &libc_extension, &extension_id);
- if (rc != RTEMS_SUCCESSFUL)
- rtems_fatal_error_occurred(rc);
-
- libc_reentrant = reentrant;
- }
-}
-
-
-void
-exit(int status)
-{
- libc_wrapup();
- rtems_shutdown_executive(status);
-}
-
-
-/*
- * Function: _exit
- * Created: 94/12/10
- *
- * Description:
- * Called from exit() after it does atexit() processing and stdio fflush's
- *
- * called from bottom of exit() to really delete the task.
- * If we are using reentrant libc, then let the delete extension
- * do all the work, otherwise if a shutdown is in progress,
- * then just do it.
- *
- * Parameters:
- * exit status
- *
- * Returns:
- * does not return
- *
- * Side Effects:
- *
- * Notes:
- *
- *
- * Deficiencies/ToDo:
- *
- *
- */
-
-#ifndef RTEMS_UNIX
-void _exit(int status)
-{
- rtems_shutdown_executive(status);
-}
-#endif
-
-#endif